Nulls position has not been specified by the user and an appropriate default will be used.
The default values are chosen such that it stays compatible with previous behavior. Unfortunately, this results in
inconsistencies across different types of queries (see https://github.com/elastic/elasticsearch/issues/77068).
Returns the enum constant of this class with the specified name.
The string must match exactly an identifier used to declare an
enum constant in this class. (Extraneous whitespace characters are
not permitted.)
Parameters:
name - the name of the enum constant to be returned.